Why do TUI developers insist on doing such weird stuff when they could just make a GUI

This post has aged like milk given the rollback. In the amount of time it's taken them to fix it, including lobbying xterm.js upstream and telling users "use a modern terminal emulator", you'd be hard-pressed to convince me they'd have burned more goodwill with paying customers than they already have if they'd quietly switched to alt-mode. It's a downright embarrassing bug for such a high-profile company.

General rule: Don't write articles with uncommon acronyms ("TUI") without introducing their meaning upon first usage.